CN210692181U

CN210692181U - Anti extrusion compensation copper cable

Info

Publication number: CN210692181U
Application number: CN201922301116.XU
Authority: CN
Inventors: 李志龙
Original assignee: Jiangsu Xin Hai Teng Cable Co Ltd
Current assignee: Jiangsu Xin Hai Teng Cable Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-06-05
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to an anti extrusion compensation copper cable, including a plurality of copper conductors, protective layer and insulating layer set up in the copper conductor outside, cladding the filling layer in the plurality of insulating layer outsides, set gradually reinforcing weaving layer, waterproof layer, protective layer, first rubber layer, second rubber layer and protective sheath outside the filling layer from inside to outside; grooves are uniformly distributed on the outer wall of the first rubber layer in an annular shape, and a plurality of convex strips matched with the grooves are arranged on the inner wall of the second rubber layer and are nested and matched in the grooves; a buffer cavity is formed between the inner wall of the second rubber layer and the outer wall of the first rubber layer; the utility model relates to a copper cable has anti extrusion effect, has mainly still set up first rubber layer and second rubber layer in the major structure outside, and both belong to elastic construction, have the compressive action, still formed the cushion chamber between the two simultaneously, also have certain resistance to compression cushioning effect, have effectively solved the problem that copper cable was damaged by the extrusion.

Description

Anti extrusion compensation copper cable

Technical Field

The utility model relates to a power cable technical field, in particular to anti extrusion compensation copper cable.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater. In the electric power lines, the proportion of cables is increasing, and the electric power cables are the cable products used for transmitting and distributing high-power electric energy in the main lines of the electric power system, and under different environments, the electric power cables must meet the requirements of resisting the severe environments, such as: anti extrusion, heat-resisting, waterproof, anticorrosion etc. and to need under the extruded condition in the use, damage appears very easily in conventional cable to cause a series of safety problems, consequently the utility model discloses in developed an anti extrusion compensation copper cable, with the problem of solving existence among the prior art, through the retrieval, not discover with the utility model discloses same or similar technical scheme.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the utility model provides an anti extrusion compensation copper cable to copper cable easily takes place to extrude and damages and have the problem of potential safety hazard among the prior art.

The technical scheme of the utility model is that: an anti-extrusion compensation copper cable comprises a plurality of copper conductors, a protective layer and an insulating layer which are arranged outside the copper conductors, a filling layer coated outside the insulating layers, a reinforcing braid layer, a waterproof layer, a protective layer, a first rubber layer, a second rubber layer and a protective sleeve which are sequentially arranged outside the filling layer from inside to outside; the section of the filling layer along the radial direction of the copper conductor is circular, and a plurality of reinforcing steel wires are uniformly distributed in the filling layer in an annular manner; the outer wall of the first rubber layer is uniformly provided with grooves in an annular shape, the grooves extend along the central axis direction of the copper conductor, the cross section along the radial direction of the copper conductor is in a rounded triangle structure, and the vertex angle of each groove faces to the central axis of the filling layer; the inner wall of the second rubber layer is provided with a plurality of convex strips matched with the grooves, the convex strips extend along the central axis direction of the copper conductor, the cross section along the radial direction of the copper conductor is in a rounded triangle structure, and the convex strips are nested and matched in the grooves; the radial length of the convex strip second rubber layer is greater than that of the groove along the radial length of the first rubber layer, and a buffer cavity is formed between the inner wall of the second rubber layer and the outer wall of the first rubber layer.

Preferably, be the annular equipartition on the protective layer outer wall and set up a plurality of rubber strips, it is a plurality of the rubber strip extends the setting along copper conductor axis direction respectively.

Preferably, the number of the rubber strips is the same as that of the grooves, and the rubber strips are respectively arranged correspondingly; in a plane arranged along the radial direction of the filling layer, a connecting line between the center of the vertex angle of the groove and the center of the filling layer is superposed with the center line of the corresponding rubber strip in the same plane.

Compared with the prior art, the utility model has the advantages that:

(1) the power cable can appear by extruded problem often in the use, the utility model relates to a copper cable has anti extrusion effect, has mainly still set up first rubber layer and second rubber layer in the major structure outside, and both belong to elastic construction, have the resistance to compression effect, have still formed the cushion chamber between the two simultaneously, also have certain resistance to compression cushioning effect, have effectively solved the problem that the copper cable was extruded and is damaged.

(2) The rubber strip that sets up on the protective layer outer wall also plays certain cushioning effect, avoids the apex angle that the sand grip is in the recess to cause serious extrusion and damage deformation to the protective layer under the pressurized condition to the inner structure has been protected.

Drawings

The invention will be further described with reference to the following drawings and examples:

FIG. 1 is an end view of the structure of the present invention;

FIG. 2 is an end view of the first rubber layer of the present invention;

fig. 3 is an end view of the second rubber layer of the present invention.

Wherein: 1. copper conductor, 2, protective layer, 3, insulating layer, 4, filling layer, 5, reinforcing steel wire, 6, reinforcing braid, 7, waterproof layer, 8, protective layer, 9, rubber strip, 10, first rubber layer, 11, recess, 12, second rubber layer, 13, sand grip, 14, protective sheath.

Detailed Description

The following detailed description is made in conjunction with specific embodiments of the present invention:

as shown in fig. 1, 2 and 3, the anti-extrusion compensation copper cable includes a plurality of copper conductors 1, a protective layer 2 and an insulating layer 3 disposed outside the copper conductors 1, a filling layer 4 coated outside the insulating layers 3, a reinforcing braid 6 disposed outside the filling layer 4 in sequence from inside to outside, a waterproof layer 7, a protective layer 8, a first rubber layer 10, a second rubber layer 12 and a protective sleeve 14.

The filling layer 4 is circular along the radial section of the copper conductor 1, and a plurality of reinforcing steel wires 5 are uniformly distributed in an annular shape inside the filling layer.

The 8 outer walls of the first rubber layer 10 inner wall laminating protective layer are arranged, the grooves 11 are uniformly distributed on the outer wall of the first rubber layer 10 in an annular mode, the grooves 11 extend along the direction of the central axis of the copper conductor 1, the cross section of the copper conductor 1 in the radial direction is of a rounded triangle structure, and the vertex angles of the grooves 11 face the central axis of the filling layer 4.

The inner wall of the second rubber layer 12 is provided with a plurality of convex strips 13 matched with the grooves 11, the convex strips 13 extend along the central axis direction of the copper conductor 1, the cross section along the radial direction of the copper conductor 1 is in a rounded triangle structure, and the convex strips are nested and matched in the grooves 11; the radial length of the convex strip 13 and the second rubber layer 12 is greater than that of the groove 11 along the radial length of the first rubber layer 10, and a buffer cavity is formed between the inner wall of the second rubber layer 12 and the outer wall of the first rubber layer 10.

A plurality of rubber strips 9 are uniformly distributed on the outer wall of the protective layer 8 in an annular shape, and the rubber strips 9 extend along the central axis direction of the copper conductor 1 respectively; the number of the rubber strips 9 is the same as that of the grooves 11, and the rubber strips are respectively arranged correspondingly; in a plane arranged along the radial direction of the filling layer 4, a connecting line between the center of the vertex angle of the groove 11 and the center of the filling layer 4 is superposed with the center line of the corresponding rubber strip 9 in the same plane.

The utility model discloses first rubber layer 10 and second rubber layer 12 have been add in the copper cable outside of traditional structure, both belong to elastic construction, the resistance to compression effect has, still formed the cushion chamber between the two simultaneously, certain resistance to compression cushioning effect also has, copper cable is effectively solved and is extrudeed the damage problem, the rubber strip 9 that sets up on the 8 outer walls of protective layer also plays certain cushioning effect simultaneously, avoid sand grip 13 to be in leading to the fact serious extrusion and damage the deformation to protective layer 8 under the pressurized condition at the apex angle in recess 11.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and therefore, the present invention is considered to be exemplary and not restrictive in any way, since the scope of the present invention is defined by the appended claims, rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and therefore any reference signs in the claims are not intended to be construed as limiting the claims concerned.

Claims

1. An anti extrusion compensation copper cable which characterized in that: the cable comprises a plurality of copper conductors, a protective layer and an insulating layer which are arranged on the outer side of the copper conductors, a filling layer which is coated on the outer side of the insulating layers, a reinforcing braid layer, a waterproof layer, a protective layer, a first rubber layer, a second rubber layer and a protective sleeve which are sequentially arranged on the outer side of the filling layer from inside to outside; the section of the filling layer along the radial direction of the copper conductor is circular, and a plurality of reinforcing steel wires are uniformly distributed in the filling layer in an annular manner; the outer wall of the first rubber layer is uniformly provided with grooves in an annular shape, the grooves extend along the central axis direction of the copper conductor, the cross section along the radial direction of the copper conductor is in a rounded triangle structure, and the vertex angle of each groove faces to the central axis of the filling layer; the inner wall of the second rubber layer is provided with a plurality of convex strips matched with the grooves, the convex strips extend along the central axis direction of the copper conductor, the cross section along the radial direction of the copper conductor is in a rounded triangle structure, and the convex strips are nested and matched in the grooves; the radial length of the convex strip second rubber layer is greater than that of the groove along the radial length of the first rubber layer, and a buffer cavity is formed between the inner wall of the second rubber layer and the outer wall of the first rubber layer.

2. The anti-extrusion compensated copper cable of claim 1, wherein: it sets up a plurality of rubber strips to be annular equipartition on the protective layer outer wall, and is a plurality of the rubber strip extends the setting along copper conductor axis direction respectively.

3. The anti-extrusion compensated copper cable of claim 2, wherein: the number of the rubber strips is the same as that of the grooves, and the rubber strips are arranged correspondingly; in a plane arranged along the radial direction of the filling layer, a connecting line between the center of the vertex angle of the groove and the center of the filling layer is superposed with the center line of the corresponding rubber strip in the same plane.